Class: DataMapper::Spec::Adapters::Adapter

Inherits:
Object
  • Object
show all
Defined in:
lib/dm-core/spec/setup.rb

Direct Known Subclasses

InMemoryAdapter

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Adapter

Returns a new instance of Adapter.



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# File 'lib/dm-core/spec/setup.rb', line 88

def initialize(name)
  @name = name.to_sym
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/dm-core/spec/setup.rb', line 86

def name
  @name
end

Instance Method Details

#adapter ⇒ Object Also known as: setup 



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# File 'lib/dm-core/spec/setup.rb', line 92

def adapter
  @adapter ||= setup!
end

#adapter_name ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 106

def adapter_name
  @adapter_name ||= infer_adapter_name
end

#alternate_storage_name ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 124

def alternate_storage_name
  'datamapper_alternate_tests'
end

#connection_uri ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 110

def connection_uri
  "#{adapter_name}://#{username}%s@#{host}/#{storage_name}".tap do |s|
    return s % (password.empty? ? '' : ":#{password}")
  end
end

#default_storage_name ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 120

def default_storage_name
  'datamapper_default_tests'
end

#host ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 136

def host
  ENV.fetch('DM_DB_HOST', '127.0.0.1')
end

#password ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 132

def password
  ENV.fetch('DM_DB_PASSWORD', 'datamapper')
end

#setup! ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 98

def setup!
  adapter = DataMapper.setup(name, connection_uri)
  test_connection(adapter)
  adapter
rescue Exception => e
  puts "Could not connect to the database using '#{connection_uri}' because of: #{e.inspect}"
end

#storage_name ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 116

def storage_name
  send("#{name}_storage_name")
end

#test_connection(adapter) ⇒ Object

Test the connection

Overwrite this method if you need to perform custom connection testing

Raises:

  • (Exception) 


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# File 'lib/dm-core/spec/setup.rb', line 145

def test_connection(adapter)
  return unless adapter.respond_to?(:select)

  adapter.select('SELECT 1')
end

#username ⇒ Object 



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# File 'lib/dm-core/spec/setup.rb', line 128

def username
  ENV.fetch('DM_DB_USER', 'datamapper')
end